"SCP-2000 is a subterranean Foundation installation originally constructed sometime in the last ███ years for the purpose of reconstructing civilization in the event that a K-Class end-of-the-world scenario could not be averted in time to prevent humanity's extinction or near-extinction. Since its inception, SCP-2000 has been activated at least twice. Foundation records regarding SCP-2000’s construction and history prior to this assumed first use have been lost."